Improvement in hydrants



M. ALLEN.

HYDRANT.

Patented Dec. 21,1875.

ATTURNEY.

UNITED STATES MICHAEL ALLEN, OF NATICK, MASSACHUSETTS.

IMPRovEAMENT-'IN HvDRANTs.

Specification forming part of Letters Patent No. 171,206, dated December f1,v1875; application filed A November 5, 1875.

To all whom it may concern:

Be it known that I, MICHAEL ALLEN, of Natick, county of Middlesex and State ofV Massachusetts, have invented certain new and useful Improvements in Hydrants, of which the following is a specification:

This invention consists in an improvement upon the hydrant for which Letters Patent' dle section ot' the hydrant, which casing isl provided with open panels, which are closed by the curved staves seen in elevation in Fig. 3 and in horizontal section in Fig. 4; Fig-5 is a plan of the top of the hollow post or water-pipe proper of the hydrant, and Fig. 6 is a horizontal section through the cross-bar or web a'tthe bottom of the hydrant, forming` a guide for both the main valve and the screw, by which said valve is opened and closed.

The hydrant illustrated in the drawing and embodyingthe improvements constituting this invention is composed of three outer main sections, A, B, and C, and one inner section, D, which forms the water-pipe proper of the hydrant. The middle section B is secured to the lower section A by ordinary bolts and iianges, as clearly seen in the drawing. The base of section D rests upon a seat, either cast in section A or bored out to receive it,

and near its top the said section D is provided with lugs c, through which it is secured by bolts d to the middle section B. The bolts d have hook-heads, which take hold in slots c in the' upper panels of section B, and thus securely hold section D in position. The upper section G, provided with an ordinary tire-plug or hydrant nozzle, is secured to section D by means of the screw-threads H. The valve V is provided with two guide-stems,g g, which pass through holes in the cross web or bar w, and the valve is opened and closed by means of the screw-stem S, which stem having a square head is operated by the rod R, whichl passes up through Vthe top of the hydrant, Where it is packed by a stuffing-box, if deing therein and freezing. rIhe cross-web or guide-bar w is bolted to the pipe D, as clearly seen in the drawing. Such guides or webs have usually been cast in one. piece with the pipe, or when cast separate they have been fitted `between lugs or in recesses cast with the pipes; but experience has shown that in very cold weather they often break, owing to the contraction of the larger mass of metal composing the pipes, whose pressure they are unable to resist, on account of their necessarily smaller mass.

The object of making the middle section B in skeleton form, whose panels p are closed by curved staves G, is to reduce the weight of section B, so thatit can readily be handled and put in place and removed by one man. rlhe covers orstaves G can be readily driven down between the grooved ribs F and removed therefrom by one man, thus reducing the force required for erecting and repairing theh ydran ts, which, as heretofore constructed, often require the joint efforts of several men to either set or remove them. l

Having thus fully described these improvements in hydrants, as of my invention I claim- Y l. The skeleton or open panel-section B, provided with grooved ribs F, for the purpose hereinbefore set forth.

2,. 'Phe combination, with the open panelsection B, of the curved staves or panel-covers Gr, for the purpose hercnbcfore set forth.

3. rIhe combination of the sections `A, B, and l), secured together by means of ordinary anges and bolts connecting sections A and B, and by hook-headed bolts dconnectin g sections B and D through lugs c upon sectiond, and slots e in the panels ot' sections B, in the manner substantially as described, for the purposes hereinbefore set forth. l

4. The detachable cross-Web or guidebar w, perforated for the guide-stems of the valve,

land also with a waste-water passage or passages, 0, in the manner substantially as described, for the purposes herenbefore setforth.

5.- 'lhe valve V, shaped substantially as described, and provided Within its base with screw-threads for its screw-stems S, and with A* vguide-stems g y, one or both perforated by a Waste-Water passage or passages, 0, in the manner substantially as described, for the purposes lhereinbefore set forth.

6. The combination of the guide-web or v cross-bar w, valve V, and screw valve-stem S, all constructed, arranged, and operating substant-iallyv in the manner hereinabove described, for the purposes set forth. In testimony that I claim the foregoing as my invention, I hereunto affix my signature.

MICHAEL ALLEN. Witnesses:

C. F. BIGELOW, A. J. SHURTLEFF. 

